Heralded Generation of Macroscopic Superposition States in a Spinor Bose-Einstein Condensate
Macroscopic superposition states enable fundamental tests of quantum mechanics and hold a huge potential in metrology, sensing, and other quantum technologies. We propose to generate macroscopic superposition states of a large number of atoms in the ground state of a spin-1 Bose-Einstein condensate....
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| Veröffentlicht in: | Physical review letters 2019-12, Vol.123 (26), p.260403-260403, Article 260403 |
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| container_issue | 26 |
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| container_title | Physical review letters |
| container_volume | 123 |
| creator | Pezzè, L Gessner, M Feldmann, P Klempt, C Santos, L Smerzi, A |
| description | Macroscopic superposition states enable fundamental tests of quantum mechanics and hold a huge potential in metrology, sensing, and other quantum technologies. We propose to generate macroscopic superposition states of a large number of atoms in the ground state of a spin-1 Bose-Einstein condensate. Measuring the number of particles in one mode prepares with large probability highly entangled macroscopic superposition states in the two remaining modes. The macroscopic superposition states are heralded by the measurement outcome. Our protocol is robust under realistic conditions in current experiments, including finite adiabaticity, particle loss, and measurement uncertainty. |
| doi_str_mv | 10.1103/PhysRevLett.123.260403 |
| format | Article |
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| ispartof | Physical review letters, 2019-12, Vol.123 (26), p.260403-260403, Article 260403 |
| issn | 0031-9007 1079-7114 |
| language | eng |
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| source | American Physical Society; EZB Electronic Journals Library |
| subjects | Atomic properties Bose-Einstein condensates Matter & antimatter Quantum mechanics |
| title | Heralded Generation of Macroscopic Superposition States in a Spinor Bose-Einstein Condensate |
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